Bunk-block.



No 849,261. 7 v V 'PATENTED APR. 2, 1907.

' .F.NIMMO.

BUNK BLOCK. APPLICATION FILED MAY18, 1906. RENEWED FEB. 15, 1907.

mu w

us irn STATES PATENT FFTGE.

BUNK-BLOCK.

Specification of Letters Patent.

fatented. April 2, 1907.

Application filed May 18, 1906. Renewed February 15, 1907. Serial No.857,572-

To a whom it may concern.-

Be it known that I, FERNANDO N1MMO,,a

citizen of the United States, residing at WVest.

Point, in the county of hite and State of Arkansas, have inventedcertain new and useful Improvements in Bunk-Blocks and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

My invention relates to certain-new and useful improvements inbunk-blocks for use in connection with car or vehicle bolsters of anyclass, but particularly to that class designed for use in loggingdistricts.

It has for its object to proidde a bunkblock simple and economic ofconstruction, readily adjusted to position, positively secured inoperative position, and easily removed when it is desired to unload thevehicle.

With these ends in view my invention consists in the details ofconstruction and arrangement hereinafter more particularly described andclaimed.

In order that those skilled in the art to which my invention appertainsmay know how to make and use my improved, bunkblock and to fullyappreciate its advantages, I will proceed to describe the constructionand operation of the same, referring by numerals to the accompanyingdrawings, in which Figure 1 is a perspective view representing a bolsterof a wagon or other vehicle with my improved bunk block secured inposition. Fig. 2 is a central longitudinal section of the same, and Fig.3 is a perspective view of the lockingdcvice removed from the block.

Similar numerals indicate like parts in the several figures of thedrawings.

1 represents a bolster adapted to be secured in position upon anordinary loggingwagon, car, or other vehicle and formed with a steppedgrooveway 2. This bolster is constructed of one or more pieces securelybolted together or of a single piece, as shown, and may be composed ofwood or any other suitable material.

3 is the bunk-block, which is also formed of one or more pieces and ofany suitable material and is constructed at its lower edge to fit withinthe grooveway 2 of the bolster and adapted to freely move longitudinallytherein. This block is provided with a central recess 4, (see Fig. 2,)which is adapted to receive the locking devices shown at Fig. 3 andwhich are pivotally secured therein, as will be presently described.

The locking devices consist of a camshaped hook 5, toggle-arms 6 7, andan operating-shaft 8. This cam-shaped hook 5 is mounted upon a shaft 9,passing transversely through the block 3 and recess 4, and 10 arecollars arranged upon the shaft 9 each side of the hook 5, as clearlyshown in Fig. 3. The toggle-arms 6 are pivoted to the hook a suitabledistance from the shaft 9 and at their opposite ends to the toggle-arm7, which is preferably formed integral with the shaft 8, which isenlarged centrally, as shown at 11, to hold the shaft againstlongitudinal movement within the recess 4 when the block is formed intwo or more parts secured together, and when the block is formed of asingle piece the enlarged portion 11 is formed integral with the arm 7and adapted to receive the shaft 8, to which it may be keyed in anysuitable' manner. One end of the shaft 8 is squared to receive anoperating hand-lever 12, which is provided with a spring-pawl 13,adapted to interlock with a segmental rack 14, secured upon the side ofthe block, as clearly illustrated in Fig. 1.

15 are bolts or rods passing through the bolster 1 at suitable distancesapart and so located as to interlock with the lower notched portion ofthe cam-shaped hook 5, as clearly indicated in Fig. 2, so that the blockmay be pldjlusted according to the load upon the ve- Having describedthe construction and arrangement of the several parts, I will nowproceed to describe the manner in which it is used. When it is desiredto lock the block to the bolster in any one of the localities indicatedby the transverse bolts or rods, the hand-lever 12 is swung downward tothrow the hook 5 into the position shown in Fig. 3 and in dotted linesin Fig. 2 and above the plane of the bolts or rods 15. The block is thenlocated within the recess 2 of the bolster 1 and moved in the directionindicated by the arrow at Fig.2 until the point of the hook is broughtbelow the plane of the bolt or rod 15, whereupon the block is pulledback until the hook contacts with the bolt or rod 15, and the lever isthen raised until the hook and bolt or rod are interlocked, as shown atFig. 2, and the spring-pawl 13 is released to interlock with thesegmental rack 14, at which time IIO the toggle-arms will have assumedthe position shown at Fig. 2 and constitute a positive lock against anyaccidental releasement of the hook from the bolt or rod 15. When it isdesired to release or remove the block 3 the pawl 13 is withdrawn fromthe rack 14 and the hand-lever depressed, which will cause thetoggle-arms and hook to assume the position shown at Fig. 3 and causethe hook to be released from the bolt or rod 15 in an obvious manner.

Having described the construction and opperation of my improvedbunk-block, what I claim as new, and desire to secure by Letters Patent,is

1. A bunk-block for logging-wagons, cars or other vehicles consisting ofa grooved bolster with one or more locking bolts or bars passingtransversely through the groove; a slidable block having its lower edgefitting within the bolster and having a longitudinal recess; acam-shaped hook located within the recess of the block and mounted upona transverse shaft; an operating-shaft mounted within the block;toggle-arms pivoted to the cam-shaped hook and. operating-shaft, andmeans for rotating the operating-shaft, substantially as and for thepurpose set forth.

2. In a bunk-block such as described and consistingof a grooved bolsterand slidable block mounted therein and provided with a cam-shaped hook,toggle-arms and operatingshaft, a hand-lever connected with one end ofthe operating-shaft and provided with a spring-pawl, and a segmentalrack secured to the side of the block and adapted to co6perate with thespring-pawl, substantially as and for the purpose set forth.

3. In a bunk-block such as described the cam-shaped hook adapted tointerlock with bolts or bars transversely located in the bolster,toggle-arms pivotally connected at one end to the cam-shaped hook andrigidly connected at the opposite end to an operating-shaft and arrangedto constitute a brace or look to prevent accidental releasement of thehook from the transverse bolts or bars, substantially as hereinbeforeset forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

FERNANDO NIMMO.

Witnesses:

N. HARDY, T. Y. PRYoR.

